A092227 Numbers k such that numerator of Bernoulli(2*k) is divisible by 157, the eighth irregular prime and first irregular prime of index 2.

31, 55, 109, 133, 157, 187, 211, 265, 289, 314, 343, 367, 421, 445, 471, 499, 523, 577, 601, 628, 655, 679, 733, 757, 785, 811, 835, 889, 913, 942, 967, 991, 1045, 1069, 1099, 1123, 1147, 1201, 1225, 1256, 1279, 1303, 1357, 1381, 1413, 1435, 1459, 1513, 1537

Offset: 1

Author

Robert G. Wilson v, Feb 25 2004

Keywords

• nonn

Links

• Amiram Eldar, Table of n, a(n) for n = 1..4000
• Eric Weisstein's World of Mathematics, Bernoulli Number.

Crossrefs

Cf. A000928, A073277, A091216, A092221, A092222, A092223, A092224, A092225, A092226, A092228, A092229.

Programs

Mathematica

Select[ Range[ 1569], Mod[ Numerator[ BernoulliB[2# ]], 157] == 0 &]